Cisco NX-OS Software Cisco Fabric Services Denial of Service Vulnerability (Cisco MDS 9000 Series Multilayer Switches)
At a glance
- Source
- NVD
- EPSS
- EPSS 2.44 % · percentile 84 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the Cisco Fabric Services component of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a buffer overflow, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Cisco Fabric Services packets. An attacker could exploit this vulnerability by sending a crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overflow, resulting in process crashes and a DoS condition on the device. MDS 9000 Series Multilayer Switches are affected running software versions prior to 6.2(25), 8.1(1b), 8.3(1). Nexus 3000 Series Switches are affected running software versions prior to 7.0(3)I4(9) and 7.0(3)I7(4). Nexus 3500 Platform Switches are affected running software versions prior to 6.0(2)A8(10) and 7.0(3)I7(4). Nexus 3600 Platform Switches are affected running software versions prior to 7.0(3)F3(5) Nexus 7000 and 7700 Series Switches are affected running software versions prior to 6.2(22) and 8.2(3). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I4(9) and 7.0(3)I7(4). Nexus 9500 R-Series Line Cards and Fabric Modules are affected running software versions prior to 7.0(3)F3(5). UCS 6200, 6300, and 6400 Fabric Interconnects are affected running software versions prior to 3.2(3j) and 4.0(2a).
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
- CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 8.6 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.0 | HIGH 8.6 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.0 | HIGH 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-10173
- GCVE · GCVE-0-2019-1616
CERT-FR advisories
- CERTFR-2019-AVI-092 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 8.2 < 8.3\(1\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\) < 7.0\(3\)i7\(4\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)i5 < 7.0\(3\)i7\(4\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)f3 < 7.0\(3\)f3\(3c\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.2 < 8.2\(3\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)i5 < 7.0\(3\)i7\(4\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)f1 < 7.0\(3\)f3\(3c\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.3 < 8.1\(1b\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 5.2 < 6.2\(25\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 7.0\(3\)i4 < 7.0\(3\)i4\(9\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 6.2 < 6.2\(22\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 6.2\(22\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 7.0\(3\)i4\(9\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 6.0\(2\)a8 < 6.0\(2\)a8\(10\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≤ 6.0\(2\)a8cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≤ 7.0\(3\)i4cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*≥ 4.0 < 4.0\(2a\)cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*< 3.2\(3j\)
Affected products
| Product | Versions |
|---|---|
| Cisco · MDS 9000 Series Multilayer Switches | affected unspecified < 6.2(25) ; affected unspecified < 8.1(1b) ; affected unspecified < 8.3(1) |
| Cisco · Nexus 3000 Series Switches | affected unspecified < 7.0(3)I4(9) ; affected unspecified < 7.0(3)I7(4) |
| Cisco · Nexus 3500 Platform Switches | affected unspecified < 6.0(2)A8(10) ; affected unspecified < 7.0(3)I7(4) |
| Cisco · Nexus 3600 Platform Switches | affected unspecified < 7.0(3)F3(5) |
| Cisco · Nexus 7000 and 7700 Series Switches | affected unspecified < 6.2(22) ; affected unspecified < 8.2(3) |
| Cisco · Nexus 9000 Series Switches in Standalone NX-OS Mode | affected unspecified < 7.0(3)I4(9) ; affected unspecified < 7.0(3)I7(4) |
| Cisco · Nexus 9500 R-Series Line Cards and Fabric Modules | affected unspecified < 7.0(3)F3(5) |
| Cisco · UCS 6200, 6300, and 6400 Fabric Interconnects | affected unspecified < 3.2(3j) ; affected unspecified < 4.0(2a) |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |